01	echo hi
02	date
03	date ;
04	trap 'echo mytrap' EXIT; date
05	date; echo hi
06	echo hi; date
07	date; date
08	{ date; date; }
09	date; { date; }
10	. _tmp/sourced.sh
11	(echo hi)
12	(date)
13	( ( date ) )
14	( ( date ) ); echo hi
15	echo hi; (date)
16	echo hi; (date;)
17	echo hi; (echo hi;)
18	echo hi; (echo hi; date)
19	( echo hi ); echo hi
20	(date;) > /tmp/out.txt
21	(date; echo hi)
22	echo $(date)
23	echo $(echo hi)
24	echo $( ( date ) )
25	echo $( ( date ); echo hi )
26	( echo hi ); echo done
27	date | wc -l
28	! date | wc -l
29	echo a | wc -l
30	command echo a | wc -l
31	command date | wc -l
32	! command date | wc -l
33	( date ) | wc -l
34	date | read x
35	{ echo a; echo b; } | wc -l
36	{ echo a; echo b; } | wc -l; echo done
37	{ echo a; date; } | wc -l
38	( echo a; echo b ) | wc -l
39	( echo a; echo b ) | ( wc -l )
40	{ echo prefix; ( echo a; echo b ); } | ( wc -l )
41	echo hi & wait
42	date & wait
43	echo hi | wc -l & wait
44	date | wc -l & wait
45	trap 'echo mytrap' EXIT; date & wait
46	trap 'echo mytrap' EXIT; date | wc -l & wait
47	{ trap 'echo mytrap' EXIT; date; } & wait